Caselegis

California case law research tools for Claude Desktop, Cursor, and any MCP-compatible AI assistant.

Powered by Caselegis — search 566,000+ California opinions, check citation status (Red/Yellow/Green), and trace citation networks, all from inside your AI assistant.

Setup

1. Get an API key at caselegis.com/settings → API Keys.

2. Add to Claude Desktop (~/.claude/claude_desktop_config.json):

{
  "mcpServers": {
    "caselegis": {
      "command": "uvx",
      "args": ["caselegis-mcp"],
      "env": { "CASELEGIS_API_KEY": "brfl_..." }
    }
  }
}

3. Restart Claude. The Caselegis tools will appear automatically.

Tools

Tool	What it does
get_quota	Check remaining monthly queries (free, doesn't count)
search_cases	Full-text search with court, date, and sort filters
get_case	Retrieve full opinion text and metadata
get_citation_status	Red/Yellow/Green — is this case still good law?
get_citations	Cases this opinion cites (outgoing)
get_cited_by	Cases that cite this opinion (incoming), filterable by treatment

Quota

Plan	Queries/month
Free	50
Pro	2,000

Upgrade at caselegis.com/settings.

Configuration

Variable	Required	Description
CASELEGIS_API_KEY	Yes	Your API key (brfl_...)
CASELEGIS_API_URL	No	Override the API URL (default: production)

License

MIT